Lifetime in Weeks
See your entire life as weeks. Know how many you've lived and how many remain.
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A human life is about 4,000 weeks. When laid out as a grid, with each square representing one week already lived and each empty square a week still ahead, the finite nature of time becomes viscerally concrete in a way that '80 years' never quite does. This visualisation, inspired by Tim Urban's work, is not meant to create anxiety — it's meant to create intentionality about what you fill those remaining squares with.
Example
Age: 34
Calculation
Total weeks = Life expectancy × 52 Weeks lived = (Current age in days) ÷ 7 Weeks remaining = Total weeks − Weeks lived Major life phases (childhood, working years, retirement) mapped to week ranges
Why Weeks Instead of Years
Years feel long; weeks feel manageable. Most people can remember what happened last week, which makes the week a more human-scaled unit for reflecting on how time is spent. When you see that a year is just 52 squares, and a decade is just 520, plans like 'I'll start writing next year' or 'I'll travel someday' take on a different character.
Frequently Asked Questions
What life expectancy should I use?
Start with your country's average (US: ~78), then adjust up or down based on family history and lifestyle.
Is this depressing to look at?
Many people find it clarifying rather than depressing — it focuses energy on what's actually important rather than what's urgent.
What does Tim Urban's 'Your Life in Weeks' show?
It's a blog post on Wait But Why that popularised this visualisation. This calculator extends it with your personal data and phase breakdowns.
How should I use this information?
Identify one recurring way you spend weeks that you'd regret prioritising over alternatives. That's the signal worth acting on.